I don't know which gaskets you are concerned about. Intake/exhaust or head gasket?
Intake gasket material can be bought in bulk and the ports and bolt locations easily transferred from the head you are using.
Head gaskets can be made from dead soft copper along with O-ringing the block, but for the street a better choice may be to re-purpose a stock type laminated gasket with mods needed for coolant passages, etc.
